Operating Systems
Device Driver
Definition
A device driver is a computer program that operates or controls a particular type of device that is attached to a computer. It acts as a translator between the hardware device and the operating system or applications that use it.
Why It Matters
Without drivers, the operating system would not know how to communicate with hardware components like graphics cards, printers, or webcams. Drivers are essential for making hardware function correctly.
Contextual Example
When you plug in a new printer, your operating system needs to install the correct printer driver. This driver tells the OS how to send data to the printer to make it print a document.
Common Misunderstandings
- Drivers are highly specific to both the hardware device and the operating system.
- Updating drivers can often fix bugs, improve performance, or enable new features for a hardware device.